Sale

Exhaust› Exhaust Pipes, Systems and Components

ER (Evolution Racewerks)

B58A Catless Stainless Steel Race Downpipe

$545.00 $490.50 Save $54.50

SKU: BM-EXH018

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Evolution Racewerks Competition Series 4.5" Catless Downpipe is designed for BMW vehicles equipped with the B58 turbo engine. This downpipe replaces the factory catalytic converter, a significant restriction in the exhaust system, to increase horsepower and torque. It features a 4.5" mandrel-bent piping made from 100% stainless steel and is 100% TIG welded for quality.

Key features include higher max horsepower and torque curves, improved throttle response, and faster turbo spool times. The downpipe is compatible with factory or aftermarket exhaust systems and includes all necessary hardware for installation. It also comes with a Limited Lifetime Warranty.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandER (Evolution Racewerks)
Part NumberBM-EXH018
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy